.wdc-tooltip {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translate(-50%, -100%);
  z-index: 9999;
  font-size: 10px;
  line-height: 1.5;
  opacity: 0.9;
  user-select: none;
  visibility: visible;
  opacity: 1;
  transition: all ease-in-out 150ms;
  &.active {
    // visibility: visible;    always visible
    // opacity: 1;
    top: -10px;
  }
  span {
    display: block;
    text-align: center;
    color: #fff;
    text-decoration: none;
    background-color: #373737;
    border-radius: 5px;
    box-shadow: 0 0 4px rgba(0, 0, 0, 0.17);
    position: relative;
    font-weight: bold;
    user-select: none;
    padding: 5px 10px;
    &:after {
      content: '';
      position: absolute;
      width: 0;
      height: 0;
      border-color: transparent;
      border-style: solid;
      border-width: 5px 5px 0;
      border-top-color: #373737;
      left: 50%;
      bottom: 0;
      transform: translate(-50%, 100%);
    }
  }
}
